It is time.

ui/views/examples/throbber_example.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ui/views/examples/throbber_example.h"
-
-#include "ui/views/controls/throbber.h"
-#include "ui/views/layout/fill_layout.h"
-#include "ui/views/view.h"
-
-namespace views {
-namespace examples {
-
-namespace {
-
-// Time in ms per throbber frame.
-const int kThrobberFrameMs = 60;
-
-class ThrobberView : public View {
- public:
-  ThrobberView() {
-    throbber_ = new Throbber(kThrobberFrameMs, false);
-    AddChildView(throbber_);
-    throbber_->SetVisible(true);
-    throbber_->Start();
-  }
-
-  virtual gfx::Size GetPreferredSize() const override {
-    return gfx::Size(width(), height());
-  }
-
-  virtual void Layout() override {
-    View* child = child_at(0);
-    gfx::Size ps = child->GetPreferredSize();
-    child->SetBounds((width() - ps.width()) / 2,
-                     (height() - ps.height()) / 2,
-                     ps.width(), ps.height());
-    SizeToPreferredSize();
-  }
-
- private:
-  Throbber* throbber_;
-
-  DISALLOW_COPY_AND_ASSIGN(ThrobberView);
-};
-
-}  // namespace
-
-ThrobberExample::ThrobberExample() : ExampleBase("Throbber") {
-}
-
-ThrobberExample::~ThrobberExample() {
-}
-
-void ThrobberExample::CreateExampleView(View* container) {
-  container->SetLayoutManager(new FillLayout());
-  container->AddChildView(new ThrobberView());
-}
-
-}  // namespace examples
-}  // namespace views